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https://www.readbyqxmd.com/read/29166282/adenocarcinoma-of-the-posterior-segment-of-the-gastrointestinal-tract-in-dogs-clinical-endoscopic-histopathological-and-immunohistochemical-findings
#1
J Spużak, R Ciaputa, K Kubiak, M Jankowski, K Glińska-Suchocka, D Poradowski, M Nowak
Of all the tumours in dogs, three percent are located in the intestines, and 36-60% of those tumours affect the large intestine. Adenocarcinomas of the intestines account for 20-35% of the gastrointestinal tumours and for almost 60% of the large intestine tumours. The aim of the study was to analyze clinical disorders and endoscopic, histopathological and immunohistochemical changes in colorectal adenocarcinomas in dogs with the use of the E-cadherin, β-catenin, cytokeratin 20 (CK20), Ki-67 and minichromosome maintenance 3 (MCM-3)...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29165714/blood-lipid-genetic-scores-the-hmgcr-gene-and-cancer-risk-a-mendelian-randomization-study
#2
Marju Orho-Melander, George Hindy, Signe Borgquist, Christina-Alexandra Schulz, Jonas Manjer, Olle Melander, Tanja Stocks
Background: It is unclear whether there are causal associations between blood lipids, statin use and cancer risks. Under certain assumptions, Mendelian randomization analysis of a genetic marker for an exposure eliminates reverse causation and confounding. Methods: We applied Mendelian randomization analysis to genetic scores, comprising 26-41 single-nucleotide polymorphisms (SNPs), as instrumental variables (IVs) for triglycerides and low- and high-density lipoprotein cholesterol (LDLC, HDLC), using a prospective cohort of 26 904 individuals in which there were 6607 incident cancers...
November 20, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29165150/search-for-biomarkers-of-asbestos-exposure-and-asbestos-induced-cancers-in-investigations-of-the-immunological-effects-of-asbestos
#3
REVIEW
Hidenori Matsuzaki, Naoko Kumagai-Takei, Suni Lee, Megumi Maeda, Nagisa Sada, Tamayo Hatayama, Shoko Yamamoto, Miho Ikeda, Kei Yoshitome, Yu Min, Yasumitsu Nishimura, Takemi Otsuki
The immunological effects of asbestos exposure on various lymphocytes such as the regulatory T cell (Treg), responder CD4+ T helper cell (Tresp), CD8+ cytotoxic T lymphocytes (CTL), and natural killer (NK) cells were investigated. Results show that asbestos exposure impairs antitumor immunity through enhancement of regulatory T cell function and volume, reduction of CXCR3 chemokine receptor in responder CD4+ T helper cells, and impairment of the killing activities of CD8+ cytotoxic T lymphocytes (CTL) and NK cells...
June 9, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29164837/serum-surfactant-protein-d-and-exhaled-nitric-oxide-as-biomarkers-of-early-lung-damage-in-systemic-sclerosis
#4
Alida Benfante, Riccardo Messina, Alessandra Paternò, Nicola Scichilone
BACKGROUND: Interstitial lung disease (ILD) complicates the course of systemic sclerosis (SSc), representing the main cause of death in these patients. The identification of parameters that can predict the early onset and progression of ILD in SSc represents an unmet need in clinical practice. The study was designed to explore whether the surfactant proteins (SP) A and D may be used as noninvasive tools for the early identification of ILD in SSc. Alveolar exhaled nitric oxide (NO) was investigated as a surrogate marker of distal inflammation...
November 21, 2017: Minerva Medica
https://www.readbyqxmd.com/read/29164615/arhgef19-interacts-with-braf-to-activate-mapk-signaling-during-the-tumorigenesis-of-non-small-cell-lung-cancer
#5
Yingchang Li, Zhihua Ye, Shuai Chen, Zhiwen Pan, Qianghua Zhou, Yi-Zhuo Li, Wen-di Shuai, Chun-Mei Kuang, Qi-Hua Peng, Wei Shi, Xueli Mao, Ran-Yi Liu, Wenlin Huang
Rho guanine nucleotide exchange factors (RhoGEFs) are proteins that activate Rho GTPases in response to extracellular stimuli and regulate various biologic processes. ARHGEF19, one of RhoGEFs, was reported to activate RhoA in the Wnt-PCP pathway controlling convergent extension in Xenopus gastrulation. The goal of this study was to identify the role and molecular mechanisms of ARHGEF19 in the tumorigenesis of non-small cell lung cancer (NSCLC). ARHGEF19 expression was significantly elevated in NSCLC tissues, and ARHGEF19 levels were significantly associated with lymph node status, distant metastasis and TNM stage; Patients with high ARHGEF19 levels had poor overall survival (OS) and progression-free survival (PFS)...
November 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29164052/development-of-novel-patient-derived-xenografts-from-breast-cancer-brain-metastases
#6
María J Contreras-Zárate, D Ryan Ormond, Austin E Gillen, Colton Hanna, Nicole L Day, Natalie J Serkova, Britta M Jacobsen, Susan M Edgerton, Ann D Thor, Virginia F Borges, Kevin O Lillehei, Michael W Graner, Peter Kabos, Diana M Cittelly
Brain metastases are an increasing burden among breast cancer patients, particularly for those with HER2(+) and triple negative (TN) subtypes. Mechanistic insight into the pathophysiology of brain metastases and preclinical validation of therapies has relied almost exclusively on intracardiac injection of brain-homing cells derived from highly aggressive TN MDA-MB-231 and HER2(+) BT474 breast cancer cell lines. Yet, these well characterized models are far from representing the tumor heterogeneity observed clinically and, due to their fast progression in vivo, their suitability to validate therapies for established brain metastasis remains limited...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29163825/maternal-histone-acetyltransferase-kat8-is-required-for-porcine-preimplantation-embryo-development
#7
Zubing Cao, Ronghua Wu, Di Gao, Tengteng Xu, Lei Luo, Yunsheng Li, Jianyong Han, Yunhai Zhang
K (lysine) acetyltransferase 8 (KAT8), an acetyltransferase that specifically catalyzes histone H4 lysine 16 acetylation, is critical for key biological processes including cell proliferation and maintenance of genome stability. However, the role of KAT8 during preimplantation development in pigs remains unclear. Results herein showed that KAT8 mRNA is maternally derived and it is required for successful development of early embryos. An abundance of KAT8 transcripts are expressed in oocytes and its abundance continuously decreases throughout meiotic maturation and preimplantation development...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163595/alfalfa-root-growth-rate-correlates-with-progression-of-microtubules-during-mitosis-and-cytokinesis-as-revealed-by-environmental-light-sheet-microscopy
#8
Petra Vyplelová, Miroslav Ovečka, Jozef Šamaj
Cell division and expansion are two fundamental biological processes supporting indeterminate root growth and development of plants. Quantitative evaluations of cell divisions related to root growth analyses have been performed in several model crop and non-crop plant species, but not in important legume plant Medicago sativa. Light-sheet fluorescence microscopy (LSFM) is an advanced imaging technique widely used in animal developmental biology, providing efficient fast optical sectioning under physiological conditions with considerably reduced phototoxicity and photobleaching...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29162723/the-transcription-factor-foxc1a-in-zebrafish-directly-regulates-expression-of-nkx2-5-encoding-a-transcriptional-regulator-of-cardiac-progenitor-cells
#9
Yunyun Yue, Mingyang Jiang, Luqingqing He, Zhaojunjie Zhang, Qinxin Zhang, Chun Gu, Meijing Liu, Nan Li, Qingshun Zhao
Cardiogenesis is a tightly controlled biological process required for formation of a functional heart. The transcription factor Foxc1 not only plays a crucial role in outflow tract development in mice, but is also involved in  cardiac structure formation and normal function in human. However, the molecular mechanisms by which Foxc1 controls cardiac development remain poorly understood. Previously, we reported that zebrafish embryos deficient in foxc1a, an ortholog of mammalian Foxc1, display pericardial edemas and die 9-10 days post fertilization...
November 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29162577/cohort-profile-the-mayo-clinic-cohort-study-of-oophorectomy-and-aging-2-moa-2-in-olmsted-county-minnesota-usa
#10
Walter A Rocca, Liliana Gazzuola Rocca, Carin Y Smith, Brandon R Grossardt, Stephanie S Faubion, Lynne T Shuster, Elizabeth A Stewart, Michelle M Mielke, Kejal Kantarci, Virginia M Miller
PURPOSE: This cohort study was established to investigate the effects of unilateral and bilateral oophorectomy on the ageing processes in women. PARTICIPANTS: We used the records-linkage system of the Rochester Epidemiology Project (REP, http://www.rochesterproject.org) to identify 570 women who underwent unilateral oophorectomy and 1653 women who underwent bilateral oophorectomy in Olmsted County, Minnesota from 1988 through 2007 (20 years). Each woman was matched by age (±1 year) to a population-based referent woman who had not undergone any oophorectomy (570 referent women) or bilateral oophorectomy (1653 referent women)...
November 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/29162191/childhood-adversity-moderates-the-influence-of-proximal-episodic-stress-on-the-cortisol-awakening-response-and-depressive-symptoms-in-adolescents
#11
Lisa R Starr, Kimberly Dienes, Catherine B Stroud, Zoey A Shaw, Y Irina Li, Fanny Mlawer, Meghan Huang
Childhood adversity (CA) is known to predict sensitization to proximal stressors. Researchers have suggested that disruptions in hypothalamus-pituitary-adrenal axis functioning may be a biological mechanism. If so, CA may predict altered associations between proximal life stress and markers of cortisol secretion. We examined whether CA moderates associations between recent episodic stress and (a) the cortisol awakening response (CAR), and (b) depressive symptoms, in 241 adolescents aged 14-17 years (cortisol n = 196)...
December 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29162168/immune-and-neuroendocrine-correlates-of-temperament-in-infancy
#12
Thomas G O'Connor, Kristin Scheible, Ana Vallejo Sefair, Michelle Gilchrist, Emma Robertson Blackmore, Marcia A Winter, Megan R Gunnar, Claire Wyman, Jennifer Carnahan, Jan A Moynihan, Mary T Caserta
There is now a clear focus on incorporating, and integrating, multiple levels of analysis in developmental science. The current study adds to research in this area by including markers of the immune and neuroendocrine systems in a longitudinal study of temperament in infants. Observational and parent-reported ratings of infant temperament, serum markers of the innate immune system, and cortisol reactivity from repeated salivary collections were examined in a sample of 123 infants who were assessed at 6 months and again when they were, on average, 17 months old...
December 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29160796/role-of-galectin-3-in-bone-cell-differentiation-bone-pathophysiology-and-vascular-osteogenesis
#13
REVIEW
Carla Iacobini, Claudia Blasetti Fantauzzi, Giuseppe Pugliese, Stefano Menini
Galectin-3 is expressed in various tissues, including the bone, where it is considered a marker of chondrogenic and osteogenic cell lineages. Galectin-3 protein was found to be increased in the differentiated chondrocytes of the metaphyseal plate cartilage, where it favors chondrocyte survival and cartilage matrix mineralization. It was also shown to be highly expressed in differentiating osteoblasts and osteoclasts, in concomitance with expression of osteogenic markers and Runt-related transcription factor 2 and with the appearance of a mature phenotype...
November 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29159897/identification-and-characterization-of-two-variants-of-the-hfq-srna-chaperone-in-the-fish-pathogen-piscirickettsia-salmonis
#14
S H Marshall, P Flores-Herrera, F A Henríquez, F A Gómez
Small RNA and chaperone proteins form synergistic duos that play pivotal roles in controlling gene expression in bacteria. This is the case for Hfq, a highly pleiotropic pretranslational modulator of general protein expression, which responds to harsh environmental conditions and influences fitness and virulence in a wide range of pathogenic Enterobacteria. Given this relevancy, we evaluated the presence and potential role of Hfq in the fish pathogen Piscirickettsia salmonis, a Gram-negative bacterium that threatens the sustainability of Chilean salmon production...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29158786/fh535-inhibits-proliferation-and-motility-of-colon-cancer-cells-by-targeting-wnt-%C3%AE-catenin-signaling-pathway
#15
Yanyan Chen, Xianping Rao, Kangmao Huang, Xiaoxia Jiang, Haohao Wang, Lisong Teng
Aberrant Wnt/β-catenin pathway activation is frequently observed in human colorectal cancer (CRC) and has become a promising target for CRC treatment. Our study aimed to evaluate the effect of FH535, a small molecule inhibitor of Wnt/β-catenin pathway, on two colon cancer cell lines, HT29 and SW480. We found FH535 significantly inhibited colon cancer cell proliferation in vitro and induced cell cycle arrest. Moreover, FH535 inhibited colon cancer xenograft growth in vivo. Wound-healing assay and Transwell assay revealed that FH535 notably suppressed migration and invasion of SW480 cells...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29158775/evaluation-of-microbial-globin-promoters-for-oxygen-limited-processes-using-escherichia-coli
#16
Alvaro R Lara, Karim E Jaén, Juan-Carlos Sigala, Lars Regestein, Jochen Büchs
Oxygen-responsive promoters can be useful for synthetic biology applications, however, information on their characteristics is still limited. Here, we characterized a group of heterologous microaerobic globin promoters in Escherichia coli. Globin promoters from Bacillus subtilis, Campylobacter jejuni, Deinococcus radiodurans, Streptomyces coelicolor, Salmonella typhi and Vitreoscilla stercoraria were used to express the FMN-binding fluorescent protein (FbFP), which is a non-oxygen dependent marker. FbFP fluorescence was monitored online in cultures at maximum oxygen transfer capacities (OTRmax) of 7 and 11 mmol L(-1) h(-1)...
2017: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29158163/identification-of-tissue-damage-extracellular-matrix-remodeling-and-bacterial-challenge-as-common-mechanisms-associated-with-high-risk-cutaneous-squamous-cell-carcinomas
#17
Melanie C Föll, Matthias Fahrner, Christine Gretzmeier, Käthe Thoma, Martin L Biniossek, Dimitra Kiritsi, Frank Meiss, Oliver Schilling, Alexander Nyström, Johannes S Kern
In this study we used a genetic extracellular matrix (ECM) disease to identify mechanisms associated with aggressive behavior of cutaneous squamous cell carcinoma (cSCC). cSCC is one of the most common malignancies and usually has a good prognosis. However, some cSCCs recur or metastasize and cause significant morbidity and mortality. Known factors that are associated with aggressiveness of cSCCs include tumor grading, size, localization and microinvasive behavior. To investigate molecular mechanisms that influence biologic behavior we used global proteomic and histologic analyses of formalin-fixed paraffin-embedded tissue of primary human cSCCs...
November 17, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29157827/supplementation-with-tocotrienols-from-bixa-orellana-improves-the-in-vivo-efficacy-of-daptomycin-against-methicillin-resistant-staphylococcus-aureus-in-a-mouse-model-of-infected-wound
#18
Elisa Pierpaoli, Fiorenza Orlando, Oscar Cirioni, Oriana Simonetti, Andrea Giacometti, Mauro Provinciali
BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) is a common cause of skin and soft-tissue infection worldwide. An adequate immune response acts as a first line of defence against infections and therefore plays an essential role in the maintenance of health. Tocotrienols (T3s), the lesser known isomers of vitamin E, possess many biological properties and have been recognized as immunomodulators. PURPOSE: The aim of this study was to investigate whether the in vivo supplementation with a mixture of 87...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29157250/ozone-exposure-is-associated-with-acute-changes-in-inflammation-fibrinolysis-and-endothelial-cell-function-in-coronary-artery-disease-patients
#19
Jaime E Mirowsky, Martha Sue Carraway, Radhika Dhingra, Haiyan Tong, Lucas Neas, David Diaz-Sanchez, Wayne Cascio, Martin Case, James Crooks, Elizabeth R Hauser, Z Elaine Dowdy, William E Kraus, Robert B Devlin
BACKGROUND: Air pollution is a major risk factor for cardiovascular disease, of which ozone is a major contributor. Several studies have found associations between ozone and cardiovascular morbidity, but the results have been inconclusive. We investigated associations between ozone and changes across biological pathways associated with cardiovascular disease. METHODS: Using a panel study design, 13 participants with coronary artery disease were assessed for markers of systemic inflammation, heart rate variability and repolarization, lipids, blood pressure, and endothelial function...
November 21, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29157062/dna-barcoding-techniques-used-to-identify-the-shared-ichthyofauna-between-the-pantanal-floodplain-and-upper-parana-river
#20
Guilherme J da Costa-Silva, Fernando Yuldi Ashikaga, Cristiane Kioko Shimabukuro Dias, Luiz Henrique Garcia Pereira, Fausto Foresti, Claudio Oliveira
The biological invasion process is widely debated topic, as the population depletion of some species and the extinction of others are related to this process. To accelerate the identification of species and to detect non-native forms, new tools are being developed, such as those based on genetic markers. This study aimed to use Barcode DNA methodology to identify fish species that had translocated between the Parana and Paraguay River Basins. Based on a database of two studies that were conducted in these regions, 289 sequences of Cytochrome Oxidase C subunit 1 (COI) were used for General Mixed Youle Coalecent (GMYC) analysis, including 29 morphospecies that were sampled in both river basins...
November 20, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
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